Tamper resistant construction for hydrant actuating nut
First Claim
1. In a fire hydrant having a hydrant body and a hydrant cover mounted on said hydrant body and a hydrant shaft having an upper portion with a valve-actuating polygonal nut positioned at said upper portion of said hydrant shaft and extending outwardly from said hydrant cover, a construction for rendering said nut tamper resistant against unauthorized actuation comprising a packing nut mounted in said hydrant cover proximate to said upper portion of said hydrant shaft, a hydrant nut actuating body, a recess in said hydrant nut actuating body for receiving said polygonal nut in turning relationship, a shroud positioned in encircling relationship to said packing nut and having a lower portion positioned proximate said hydrant cover, a first rotatable connection between said shroud and said packing nut for permitting free rotation of said shroud on said packing nut, a cap mounted on said hydrant nut actuating body proximate said shroud, and a second rotatable connection between said cap and said hydrant nut actuating body.
3 Assignments
0 Petitions
Accused Products
Abstract
A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover of the fire hydrant including a packing nut threaded into the hydrant body cover proximate the hydrant nut, a hydrant nut actuating body located within the packing nut and mounted on the hydrant nut in turning relationship therewith, a shroud permanently or removably rotatably mounted on the packing nut in closely spaced relationship to a cap rotatably mounted on the hydrant nut actuating body, and a configuration on the hydrant nut actuating body between the cap and the shroud for receiving a special wrench.
56 Citations
33 Claims
- 1. In a fire hydrant having a hydrant body and a hydrant cover mounted on said hydrant body and a hydrant shaft having an upper portion with a valve-actuating polygonal nut positioned at said upper portion of said hydrant shaft and extending outwardly from said hydrant cover, a construction for rendering said nut tamper resistant against unauthorized actuation comprising a packing nut mounted in said hydrant cover proximate to said upper portion of said hydrant shaft, a hydrant nut actuating body, a recess in said hydrant nut actuating body for receiving said polygonal nut in turning relationship, a shroud positioned in encircling relationship to said packing nut and having a lower portion positioned proximate said hydrant cover, a first rotatable connection between said shroud and said packing nut for permitting free rotation of said shroud on said packing nut, a cap mounted on said hydrant nut actuating body proximate said shroud, and a second rotatable connection between said cap and said hydrant nut actuating body.
- 13. A construction for rendering a hydrant nut tamper resistant comprising a packing nut, a hydrant nut actuating body having upper and lower ends with said lower end positioned within said packing nut, an opening in said lower end of said hydrant nut actuating body for receiving a hydrant nut, a shroud rotatably mounted on said packing nut, and a cap rotatably mounted on said hydrant nut actuating body proximate said shroud.
- 26. A tamper resistant construction for preventing unauthorized actuation of a fire hydrant comprising a packing nut, a hydrant nut actuating body rotatably mounted on said packing nut, a shroud, and a rotatable connection between said hydrant nut actuating body and said shroud.
- 32. A construction for rendering a hydrant nut tamper resistant comprising a packing nut, a hydrant nut actuating body having upper and lower ends with said lower end positioned within said packing nut, an opening in said lower end of said hydrant nut actuating body for receiving a hydrant nut, and a shroud rotatably mounted on said packing nut.
Specification